.photo {
    float: left;
    width: 100px;
    height: 100px;
}

.overview {
	display: block;
}

.follow {
	margin: 10px;
}

.pic0 {
    float: left;
    width: 150px;
    height: 180px;
}
.icon {
	margin: 5px;
	float: left;
	width: 60px;
	height: 60px;
}

.material {
	margin-top: 10px;
	overflow: hidden;
}

.comment {
	margin-top: 10px;
	overflow: hidden;
}

.operation {
	float: right;
	clear: left;
}

.commentBtn {
	padding: 5px;
	display: inline-block;
	float: right;
}

.relatedCourses {
	margin-top: 10px;
	margin-bottom: 10px;
}